Messages in this thread | | | Date | Thu, 23 Mar 2017 11:08:28 +0100 | From | Corentin Labbe <> | Subject | stmmac: Performance regression after commit aff3d9eff843 "net: stmmac: enable multiple buffers" |
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Hello
Using next-20170323 produce a huge performance regression on my sunxi boards. On dwmac-sun8i, iperf goes from 94mbs/s to 37 when sending.
On cubieboard2(dwmac-sunxi), iperf made the kernel flood with "ndesc_get_rx_status: Oversized frame spanned multiple buffers" and network is lost after.
Reverting aff3d9eff84399e433c4aca65a9bb236581bc082 fix the issue. I still try to found which part of this patch mades the performance lower.
Regards Corentin Labbe
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